I sort of assumed that it was somewhere in North America but if you look at the gold emblem in the command centre, the globe is centred more-or-less on Japan.

Certainly, the scenery around the base would match up with it being somewhere in Japan.

You would be able to pinpoint its location by seeing where the alien fortress starts firing down at near the end of the series but the Earth just shows in those shots as a blue ball covered in cloud. No land-masses are visible.

I've always had the impression that it was located somewhere in remote South America. The mountains and landscape give me that feeling for some reason. Images like this though reminds me of the scenery surrounding EDF; http://stuartmattersphotography.com/wp- ... -chile.jpg

But hell, the scenery is not unfitting to Japan either, and the show was made in Japan afterall. Even so, Japan comes off as an odd place for the operations centre of a universal defence agency. I know nothing about their population, but I feel Japan would be more densely populated where a rural area would probably be better for it. I'm not sure South America is much founded in reason either though, so don't listen to me...

Remember the scene where Carter and Shiro have come out of the shooting range? Note the trees. I believe it's Japanese symbolism with the blossom falling, but that might suggest a Japanese setting. It's pretty generic really...

Andy, that's dead clever. I'd totally forgotten about that.
I must say, looking into it made a bit of a game-changer. I'd always taken it as read that it was North America but ... now, I don't think so.

i like the suggestion of South America, mainly because in the original Gundam, the Federation H.Q. "Jaburo" is located there (and is always being infiltrated by that pesky Char, or about to have a space colony dropped on it by those rascally Zeons, or... ) but as others have suggested Japan is reasonably likely simply for the same reason "EarthGov", or "Star Fleet H.Q (No, The OTHER Star Fleet)", or "Central" is always somewhere in the U.S; it reflects the cultural bias of the series creators.

Good spot on the cherry trees! (which might not actually suggest Japan, though - again, cultural bias sometimes sneaks through to other settings; I recall seeing an anime once where a protagonist arriving in the U.K. by Eurostar train was bowed at upon arrival by the station staff... ).

"The power of bakers, the power of artists; even the power of witches! It must be a power given by God... sometimes we suffer for it."- Ursula, Kikis Delivery Service.

I wasn't specifically referring to "Babylon 5 "; I was pulling generic future-Earth organisations out of the depths of my brain (with the obvious exception of Star Fleet) and had forgotten "EarthGov" had been used there (a similar brainfade is how I ended up with my on-line name... ), but now I think of it Geneva also seems to be a popular choice for wherever the future equivalent of the EU will choose to have a headquarters.

And Babylon 5 is s**t! [1]

[1] Not really, love it too, just couldn't resist the quote...

"The power of bakers, the power of artists; even the power of witches! It must be a power given by God... sometimes we suffer for it."- Ursula, Kikis Delivery Service.